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Diagnostics and troubleshooting
8.2 Diagnostics/Remote function test
8.2
Diagnostics/Remote function test
The units starts a self diagnostics routine when the power supply is applied or interrupted for
>2 seconds.
The loop current shows following behavior, which can be evaluated by an external signal
conditioning instrument (accessory) or by a PLC:
①
②
③
④
⑤
⑥
60
Loop current / mA
Power supply applied
Diagnostics test is o.k. Measurement signal is present:
•
Loop current = 8 or 16mA
•
Relay = open or closed (depending on selected output logic, see Output logic (Page 30))
Diagnostics test is o.k. Measurement signal is present:
•
Loop current = 8 or 16mA
•
Relay = open or closed (depending on selected output logic, see Output logic (Page 30))
Diagnostics test failed:
•
Loop current <=3,6mA
•
Relay = open
sec
SITRANS LCS100 2-wire mA and Relay Version
Operating Instructions, 05/2023, A5E52142831-AA
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